[SystemZ][z/OS] Account for renamed parameter name (libc++)

[muiez]

Summary

The following patch (https://reviews.llvm.org/D129051) broke z/OS builds by renaming the parameter name. This patch accounts for that change.

[philnik]

Sorry, I didn't see that one. LGTM.

[fanbo-meng]

LGTM

[zibi]

LGTM

[Mordante]

LGTM! Does this need to be backported to the LLVM-15 release branch?

[muiez]

In D132946#3758769, @Mordante wrote:

LGTM! Does this need to be backported to the LLVM-15 release branch?

That would be great. Is there a process to do so? Or is it simply cherry-picking to the llvmorg-15.0.0-rc3 release branch.

[Mordante]

In D132946#3759119, @muiez wrote:

In D132946#3758769, @Mordante wrote:

LGTM! Does this need to be backported to the LLVM-15 release branch?

That would be great. Is there a process to do so? Or is it simply cherry-picking to the llvmorg-15.0.0-rc3 release branch.

There is a process. @ldionne is the one to do that. I've already asked him to do it.

[ldionne]

This will get cherry-picked via https://github.com/llvm/llvm-project/issues/57491.

Thanks for the heads up @Mordante !

libcxx/include/regex

         0x38;
 #endif
 }
 
 inline _LIBCPP_INLINE_VISIBILITY
 unsigned char __to_lower(unsigned char __c)
 {
 #if defined(__MVS__) && !defined(__NATIVE_ASCII_F)
-    return c & 0xBF;
+    return __c & 0xBF;
 #else
     return __c | 0x20;
 #endif
 }
 
 template <class _CharT>
 int
 regex_traits<_CharT>::__regex_traits_value(unsigned char __ch, int __radix)